Ct angiography: Is a medical test

CT angiography is a medical test that uses a CT scan and a dye to show blood vessels and tissues in your body. Learn about the reasons, risks, and preparation for this test from Johns Hopkins Medicine. A CT angiogram is an imaging test that makes 3D pictures of your blood vessels. It uses CT scans and contrast dye. Learn how it works and how to prep. However, for abnormal CT angiography findings, such as blockage or narrowing of one or more blood vessels, the patient may need a standard angiography as a follow-up. Q: Which angiography is best for detecting heart problems? A: CT angiography or CT coronary angiography is considered the most accurate method to detect heart problems. Learn about CT angiography, a procedure that uses CT scanning and contrast material to examine blood vessels and related conditions. Find out how to prepare, what to expect, and what are the benefits and risks of CTA.